.TH "MQTTAsync_connectData" 3 "Sat Aug 16 2025 14:15:23" "Paho Asynchronous MQTT C Client Library" \" -*- nroff -*-
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.SH NAME
MQTTAsync_connectData
.SH SYNOPSIS
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.PP
.PP
\fR#include <MQTTAsync\&.h>\fP
.SS "Data Fields"

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.RI "char \fBstruct_id\fP [4]"
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.RI "int \fBstruct_version\fP"
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.RI "const char * \fBusername\fP"
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.RI "struct {"
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.RI "   int \fBlen\fP"
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.RI "   const void * \fBdata\fP"
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.RI "} \fBbinarypwd\fP"
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.in -1c
.SH "Detailed Description"
.PP 
The connect options that can be updated before an automatic reconnect\&. 
.SH "Field Documentation"
.PP 
.SS "char struct_id[4]"
The eyecatcher for this structure\&. Will be MQCD\&. 
.SS "int struct_version"
The version number of this structure\&. Will be 0 
.SS "const char* username"
MQTT servers that support the MQTT v3\&.1 protocol provide authentication and authorisation by user name and password\&. This is the user name parameter\&. Set data to NULL to remove\&. To change, allocate new storage with ::MQTTAsync_allocate - this will then be free later by the library\&. 
.SS "int len"
binary password length 
.SS "const void* data"
binary password data 
.SS "struct  { \&.\&.\&. }  binarypwd"
The password parameter of the MQTT authentication\&. Set data to NULL to remove\&. To change, allocate new storage with ::MQTTAsync_allocate - this will then be free later by the library\&. 

.SH "Author"
.PP 
Generated automatically by Doxygen for Paho Asynchronous MQTT C Client Library from the source code\&.
